#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>

int main()
{
	int a = 3, b = 4, c = 5;
	printf("%d\n", a && b);//1
	printf("%d\n", a <= 5);//1
	printf("%d\n", a || b + c && b - c);//1
	printf("%d\n", !((a < b) && !c || 1));//0
	return 0;
}